Improvement in coffee-mills



UNITED STATES LUI SCHULZ, or CINCINNATI, oHIo.

IMPROVEMENT IN COFFEE-MILLS.

Specication forming part of Letters Patent No. 139,824, dated June 10, 1873; application tiled April 5, 1873.

To all whom it may concern Be it known that I, LUI SCHULZ, of Cincinnati, county of Hamilton and State of Ohio, have invented a new and useful Improvement in Cott'ee-Mills and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawing making a part ot this speci fica-tion, in which- Figure lis a vertical section of my invention, and Fig. 2 represents a portion of the tray, showing its mode of attachment.

The nature of my improvement relates to th at class of colee-mills for domestic use which are held in the hand while in operation, and

has for its object the production of compact,

durable, and simple mill, easily adjusted and kept in order.

In construction my invention is as follows: A A is the frame, terminating below in three legs, a a. The hopper B has its interior, b, made tapering at thelower extremity, on which are cast one set of the grinding-teeth, and two pendants, bl b1, on opposite sides to each other, through which the wire-pin al passes after penetrating the frame A, holding the parts A and B permanently together. The receptacle C for ground coli'ee is preferably made of sheet metal, and provided at its mouth with two L- shaped slots, c, which engage with the pin al, thereby giving an easy means of attaching or detaching the same from the mill when so desired. The slots c at their lower extremity are slight-1y enlarged, as seen at c', which allows the pino]L to enter the same, thus securing the vessel from becoming accidentally detached. The drawing represents the rceptacle (lwithin the frame A, but may, wit-h equal advantage, be made to pass on the outside of the body of frame A, by extending the pin al as shown by the dotted lines at a2, and dispensing with legs a a, allowing the bottom of vessel (l to serve as the base. The journalbearing b2 is cast in one piece with the hopper,

by the intervention of two or more supporting braces or ribs, b3 b3. These ribs extend up the side of 'the hopper some distance at their point sha-nk on the grinder E. A small washer, F, haying been placed over the shank e, an ordii nary machine-screw, G, is driven into the end of" shank e, holding the crank firmly in place,

and at the same time gives a certain amount of adjustment of parts E and" b, by raising or lowering the said screw G.

The operation of my invention becomes oby,

viqns fromthe foregoing description. Among "the advanta ges of my improved mill may be mentioned its simplicity; its not permitting any( waste of coi'ee from defective titting the receptacle C with the mill; its not clogging, or permitting the last grains to hang to the ribs b3; and the ease with which it may be adj usted without the use ot a wrench. i

Having thus described my invention, what I claim as new, and desire to secure by Letteis Patent, is-

1. In a coi'ee-mill, the combination ofthe receiving-vessel C having a slot, c, enlarged at o', frame A, and hopper B, connected together by pin a1, substantially as set forth.

2. In a coiee-mill, the curved and featherededged ribs b3 in combination with the hopper B, and journal, L2, substantially as set forth.

LUI SCHULZ. Attest: T. VAN KANNEL,

J. B. OORBIN. 

